## The following can be run via phpMyAdmin, or by Admin->Tools->Install SQLPatch:

## The following is used only to remove this mod:
#delete from configuration where configuration_key in('PRODUCT_LISTING_LAYOUT_STYLE','PRODUCT_LISTING_COLUMNS_PER_ROW');

INSERT INTO configuration (configuration_title, configuration_key, configuration_value, 
       configuration_description, configuration_group_id, sort_order, 
       last_modified, date_added, use_function, set_function) 
       VALUES ('Product Listing - Layout Style', 'PRODUCT_LISTING_LAYOUT_STYLE', 'rows', 
               'Select the layout style:<br />Each product can be listed in its own row (rows option)
                or products can be listed in multiple columns per row (columns option)', '8', '40', NULL, 
                now(), NULL, 'zen_cfg_select_option(array("rows", "columns"),');

INSERT INTO configuration (configuration_title, configuration_key, configuration_value, 
       configuration_description, configuration_group_id, sort_order, 
       last_modified, date_added, use_function, set_function) 
       VALUES ('Product Listing - Columns Per Row', 'PRODUCT_LISTING_COLUMNS_PER_ROW', '3', 
               'Select the number of columns of products to show in each row in the product listing.  
               The default setting is 3.', '8', '41', NULL, now(), NULL, NULL);